He did not need any testimony about man, for He knew what was in a man.
Berean Standard Bible (BSB)
and because he didn’t need for anyone to testify concerning man; for he himself knew what was in man.
World English Bible (WEB)
And{G2532}{G3754} needed{G5532}{G2192}{(G5707)} not{G3756} that{G2443} any{G5100} should testify{G3140}{(G5661)} of{G4012} man{G444}: for{G1063} he{G846} knew{G1097}{(G5707)} what{G5101} was{G2258}{(G5713)} in{G1722} man{G444}.
Strong's King James
(25) That it wasn't necessary for Him to have anyone testify about mankind, because He knew what was in mankind.
The F.O.G
The F.O.G Message
and because he had no need that any should testify concerning man, for he himself was knowing what was in man.
Young's Literal Translation